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Fix bswap patterns for trunk.

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Committed by Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

2010-01-28 Stephen Thomas <stephen.thomas@arm.com>

        * config/arm/arm.md (bswapsi2): Add support for bswapsi2.
        (arm_rev): New.
        (arm_legacy_rev): Likewise.
        (thumb_legacy_rev): Likewise.


2010-01-28 Stephen Thomas <stephen.thomas@arm.com>

        * testsuite/gcc.dg/optimize-bswap*.c: Add ARM target

From-SVN: r156313
This commit is contained in:
Stephen Thomas 2010-01-28 08:35:59 +00:00 • committed by Ramana Radhakrishnan
parent c2776306a8
commit 4fc2b1aabf
5 changed files with 114 additions and 2 deletions
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7
gcc/ChangeLog
View file

@ -1,3 +1,10 @@
2010-01-28 Stephen Thomas <stephen.thomas@arm.com>
* config/arm/arm.md (bswapsi2): Add support for bswapsi2.
(arm_rev): New.
(arm_legacy_rev): Likewise.
(thumb_legacy_rev): Likewise.
2010-01-27 Jakub Jelinek <jakub@redhat.com>
* dwarf2out.c (mem_loc_descriptor): Remove special casing of

101
gcc/config/arm/arm.md
View file

@ -11194,6 +11194,107 @@
(set_attr "length" "4")]
)
(define_insn "arm_rev"
[(set (match_operand:SI 0 "s_register_operand" "=r")
(bswap:SI (match_operand:SI 1 "s_register_operand" "r")))]
"TARGET_EITHER && arm_arch6"
"rev\t%0, %1"
[(set (attr "length")
(if_then_else (eq_attr "is_thumb" "yes")
(const_int 2)
(const_int 4)))]
)
(define_expand "arm_legacy_rev"
[(set (match_operand:SI 2 "s_register_operand" "")
(xor:SI (rotatert:SI (match_operand:SI 1 "s_register_operand" "")
(const_int 16))
(match_dup 1)))
(set (match_dup 2)
(lshiftrt:SI (match_dup 2)
(const_int 8)))
(set (match_operand:SI 3 "s_register_operand" "")
(rotatert:SI (match_dup 1)
(const_int 8)))
(set (match_dup 2)
(and:SI (match_dup 2)
(const_int -65281)))
(set (match_operand:SI 0 "s_register_operand" "")
(xor:SI (match_dup 3)
(match_dup 2)))]
"TARGET_32BIT"
""
)
;; Reuse temporaries to keep register pressure down.
(define_expand "thumb_legacy_rev"
[(set (match_operand:SI 2 "s_register_operand" "")
(ashift:SI (match_operand:SI 1 "s_register_operand" "")
(const_int 24)))
(set (match_operand:SI 3 "s_register_operand" "")
(lshiftrt:SI (match_dup 1)
(const_int 24)))
(set (match_dup 3)
(ior:SI (match_dup 3)
(match_dup 2)))
(set (match_operand:SI 4 "s_register_operand" "")
(const_int 16))
(set (match_operand:SI 5 "s_register_operand" "")
(rotatert:SI (match_dup 1)
(match_dup 4)))
(set (match_dup 2)
(ashift:SI (match_dup 5)
(const_int 24)))
(set (match_dup 5)
(lshiftrt:SI (match_dup 5)
(const_int 24)))
(set (match_dup 5)
(ior:SI (match_dup 5)
(match_dup 2)))
(set (match_dup 5)
(rotatert:SI (match_dup 5)
(match_dup 4)))
(set (match_operand:SI 0 "s_register_operand" "")
(ior:SI (match_dup 5)
(match_dup 3)))]
"TARGET_THUMB"
""
)
(define_expand "bswapsi2"
[(set (match_operand:SI 0 "s_register_operand" "=r")
(bswap:SI (match_operand:SI 1 "s_register_operand" "r")))]
"TARGET_EITHER"
"
if (!arm_arch6)
{
if (!optimize_size)
{
rtx op2 = gen_reg_rtx (SImode);
rtx op3 = gen_reg_rtx (SImode);
if (TARGET_THUMB)
{
rtx op4 = gen_reg_rtx (SImode);
rtx op5 = gen_reg_rtx (SImode);
emit_insn (gen_thumb_legacy_rev (operands[0], operands[1],
op2, op3, op4, op5));
}
else
{
emit_insn (gen_arm_legacy_rev (operands[0], operands[1],
op2, op3));
}
DONE;
}
else
FAIL;
}
"
)
;; Load the FPA co-processor patterns
(include "fpa.md")
;; Load the Maverick co-processor patterns

4
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,7 @@
2010-01-27 Stephen Thomas <stephen.thomas@arm.com>
* testsuite/gcc.dg/optimize-bswap*.c: Add ARM target
2010-01-27 Richard Guenther <rguenther@suse.de>
PR middle-end/42878

2
gcc/testsuite/gcc.dg/optimize-bswapdi-1.c
View file

@ -1,4 +1,4 @@
/* { dg-do compile { target alpha*-*-* ia64*-*-* x86_64-*-* s390x-*-* powerpc*-*-* rs6000-*-* } } */
/* { dg-do compile { target arm*-*-* alpha*-*-* ia64*-*-* x86_64-*-* s390x-*-* powerpc*-*-* rs6000-*-* } } */
/* { dg-require-effective-target stdint_types } */
/* { dg-require-effective-target lp64 } */
/* { dg-options "-O2 -fdump-tree-bswap" } */

2
gcc/testsuite/gcc.dg/optimize-bswapsi-1.c
View file

@ -1,4 +1,4 @@
/* { dg-do compile { target alpha*-*-* i?86-*-* powerpc*-*-* rs6000-*-* x86_64-*-* s390*-*-* } } */
/* { dg-do compile { target arm*-*-* alpha*-*-* i?86-*-* powerpc*-*-* rs6000-*-* x86_64-*-* s390*-*-* } } */
/* { dg-require-effective-target stdint_types } */
/* { dg-options "-O2 -fdump-tree-bswap" } */